linux-kernel - Re: [PATCH v5 10/23] irqchip/gic-v4.1: Plumb mask/unmask SGI callbacks

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Date:   Mon, 16 Mar 2020 19:15:50 +0100
From:   Auger Eric <eric.auger@...hat.com>
To:     Marc Zyngier <maz@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Jason Cooper <jason@...edaemon.net>,
        Robert Richter <rrichter@...vell.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Zenghui Yu <yuzenghui@...wei.com>,
        James Morse <james.morse@....com>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        Suzuki K Poulose <suzuki.poulose@....com>
Subject: Re: [PATCH v5 10/23] irqchip/gic-v4.1: Plumb mask/unmask SGI
 callbacks



On 3/4/20 9:33 PM, Marc Zyngier wrote:
> Implement mask/unmask for virtual SGIs by calling into the
> configuration helper.
> 
> Signed-off-by: Marc Zyngier <maz@...nel.org>
> Reviewed-by: Zenghui Yu <yuzenghui@...wei.com>
> ---
>  drivers/irqchip/irq-gic-v3-its.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
> index e0db3f906f87..c93f178914ee 100644
> --- a/drivers/irqchip/irq-gic-v3-its.c
> +++ b/drivers/irqchip/irq-gic-v3-its.c
> @@ -3939,6 +3939,22 @@ static void its_configure_sgi(struct irq_data *d, bool clear)
>  	its_send_single_vcommand(find_4_1_its(), its_build_vsgi_cmd, &desc);
>  }
>  
> +static void its_sgi_mask_irq(struct irq_data *d)
> +{
> +	struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
> +
> +	vpe->sgi_config[d->hwirq].enabled = false;
> +	its_configure_sgi(d, false);
> +}
> +
> +static void its_sgi_unmask_irq(struct irq_data *d)
> +{
> +	struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
> +
> +	vpe->sgi_config[d->hwirq].enabled = true;
> +	its_configure_sgi(d, false);
> +}
> +
>  static int its_sgi_set_affinity(struct irq_data *d,
>  				const struct cpumask *mask_val,
>  				bool force)
> @@ -3948,6 +3964,8 @@ static int its_sgi_set_affinity(struct irq_data *d,
>  
>  static struct irq_chip its_sgi_irq_chip = {
>  	.name			= "GICv4.1-sgi",
> +	.irq_mask		= its_sgi_mask_irq,
> +	.irq_unmask		= its_sgi_unmask_irq,
>  	.irq_set_affinity	= its_sgi_set_affinity,
>  };
>  
> 
Reviewed-by: Eric Auger <eric.auger@...hat.com>

Thanks

Eric